Safety-lock.



A. J. PBRRIN. Y

SAFETY LOOK Patented Jam 24, 1911.

APPLICATION FILED NOV. 30,, 1909- mwboz Andrew]. R 172 UNITED STATES PATENT OFFICE.

ANDREW J. PERRIN, OF FARGO, OKLAHOMA.

SAFETY-LOCK.

To all whom 'it may concern:

Be it known that I, ANDREW J. PERRIN, a citizen of the United States, residing at Fargo, in the county of Ellis and State of Oklahoma, have invented new and useful Improvements in Safety-Locks, of which the following is a specification.

This invention is a coin-controlled lock, particularly adapted for use on the doors of lockers and affording access to and the exclusive use of a locker as for the safe deposit of a hat, coat or the like, after the depositing of a coin of suitable denomination in the lock, the said invention consisting in the construction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying drawings :-Figure 1 is a perspective of a coin-controlled lock constructed in accordance with my invention. Fig. 2 is a front elevation of the same with the outer plate removed and showing the key in cross section. Fig. 3 is a similar View of a portion of the same showing the lock bolt in the act of being operated by a coin. Fig. 4 is a sectional view of the same extending longitudinally through the lock. Fig. 5 is a detail sectional view on the plane indicated by the line aa of Fig. 3. Fig. 6 is a similar view on the plane indicated by the line bb of Fig. 3.

The casing of my improved lock, in the embodiment of the invention here shown, comprises an inner plate 1 and an outer plate 2. The said inner plate 1, which in practice, may be mortised in or otherwise secured to the door of a locker or other receptacle is provided in its outer side with a channel 3 which extends longitudinally thereof and nearly from end to end. The upper portion of the said channel is deepened somewhat as at 1. The lower portion of the channel communicates with an inclined coin-discharge opening 5. The said inner plate 1 is further formed in its outer side with a transverse channel or guideway 6 in one side and with a key-receiving recess 7 on the upper side of said channel or guideway 6. The lock spring 8 is placed in a channel 9 which extends across the bottom or inner side of the channel or guideway 6, one end of the said lock spring being fast and the other end thereof being loose so that the free end of the said lock spring tends to move outwardly or toward the outer or face plate 2 and to engage a lock notch or Specification of Letters Patent.

Application filed November 30, 1909.

Patented Jan. 24, 1911.

Serial No. 530,590.

channel 8 on the inner side of the bolt 10 to lock the bolt in the position shown in Figs. 3 and 5, as when the bolt is engaged by a keeper to secure the door. The bolt 10 is fitted in the channel or guideway 6 for movement therein longitudinally of said bolt, the inner end of said bolt being oppositely beveled to form an upper inclined face 11 and a lower inclined face 12. In the upper side of the bolt is a recess 13 for the reception of the ward of a key, said recess forming a shoulder 14: on one side and being formed on the opposite side with an overhang 15 which constitutes a stop.

The outer or face plate 2 is secured on the inner plate 1 as by means of screws or pins 16 and is provided, at a point a suitable distance above the bolt with a coin-receiving slot 17 of suitable width to enable a coin of the right denomination to be inserted therein and directed to the vertical channel 3 of the inner face lock plate. The said outer or face plate 2 is further provided, above the coin-receiving slot 17, with a vertical slot 18, the inner side of which is substantially semicylindrical in form. A vertically movable slide 19 operates in thechannel 3 between the inner and outer lock plates and has a slot 20 in its outer side, in which and in the slot 18 is placed a coiled extensile spring 21 the ends of which bear a ainst the ends of the slot 20, the function of the said spring being to normally maintain the slide in the normal elevated position shown in Figs. 2 and 4:.

A knob or finger piece 22 which operates on the outer side of the outer or face plate 2 of the lock case has its stem 2 1 which operates in the slot 18, attached to the said slide, the said knob or finger piece enabling the 95 slide to be manually moved downwardly. The face or outer plate 2 is further provided with a key-hole 25, the arm of which is curved or irregular in form to correspond with the ward 2(3 of the key, the said ward of the key being bent to enable it to fit in the recess 13 of the bolt and its free end being outturned to form a stop 27 which, when the key is turned in the direction indicated by the arrow in Fig. 2, assuming the bolt 10 to be in the withdrawn position shown in said figures, will engage the stop 15 of the bolt and prevent the further turning of the key and, hence, also prevent the key from being removed from the key-hole. In other words, assuming the key to be in place in the lock with its ward engaged in the recess 13 of the bolt, and the bolt in initial withdrawn position, the key by the engagement of its ward between the inner and outer plates of the lock case and by reason of the fact that its ward is out of register with the key-hole, will be prevented from being withdrawn from the key hole because it can not be turned to such an extent as to cause its ward to register with the key-hole, the turning of the key being prevented by the stop 15 of the bolt. Hence, the key, as to its removal from the lock, will be controlled by the position of the bolt and when the lock is in its normal position, the door unlocked and the bolt withdrawn, the key will be kept securely in the key-hole of the look. In practice, the key will be provided with a numbered tag 28 as indicated in Fig. 1.

The operation of the invention is as follows z -lvhen a party desires the use of the locker, the door of which is provided with my improved lock, he first places a coin of the required denomination in the coin slot 17. The coin descends in the channel or duct 3 until it reaches the inclined upper side 11, forming a cam, of the bolt. The person who deposited the coin then, by means of the .knob or finger piece 23 moves the slide 19 downwardly, causing said slide to press downwardly on the coin 30 so as to force the coin past the inner end of the bolt and in so doing causing the coin by its action on the cam face or end 11 of the bolt to move the latter outwardly to the position shown in Figs. 3 and 5, that being engaged position, so as to lock the door, this locking of the bolt being effected through the instrumentality of the coin As the bolt moves to locking position, the stop 15 thereof clears the ward of the key and the spring 8 by engagement with the channel or notch 8 of the bolt secures the latter in locking position. The key can then be turned to cause its ward to register with the key hole 25 so that it may be removed by the person using the locker. It will be obvious from the foregoing that the bolt can only be moved to locking position through the instrumentality of a coin and can be moved to unlocking position only by means of the key and that the latter can not be detached from the lock until after the bolt has been placed in locking position through the instrumentality of the coin. It

will be observed that the free end of the recess in its upper edge provided with a bear- A ing surface at one of its sides and with an overhanging stop lug at 1ts oppos1tes1de,sa1d bolt being also formed in its rear face wlth a locking notch, a locking spring adapted to engage said notch when the bolt is in looking position, and a key having a ward bent laterally at an angle to engage and retract said locking spring and to enter said recess in the bolt, said ward being adapted to engage said bearing shoulder for the retraction of the bolt and to lie beneath said stop lug when the bolt is retracted, whereby said lug will be arranged to lie in the path of movement of the ward to prevent the withdrawal of the key.

In testimony whereof I aflix my signature in presence of two Witnesses.

ANDREW J. PERRIN.

Vitnesses LEROY REMINGER, WV. W. WEBB. 

